On Secrecy Performance of MISO SWIPT Systems with TAS and Imperfect CSI

Gaofeng Pan, Hongjiang Lei, Yansha Deng, Lisheng Fan*, Jing Yang, Yunfei Chen, Zhiguo Ding

*此作品的通讯作者

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摘要

In this paper, a multiple-input single-output (MISO) simultaneous wireless information and power transfer (SWIPT) system, including one base station (BS) equipped with multiple antennas, one desired single-antenna information receiver (IR), and N (N > 1) single-antenna energy-harvesting receivers (ERs) is considered. Assuming that the information signal to the desired IR may be eavesdropped by ERs if ERs are malicious, we investigate the secrecy performance of the target MISO SWIPT system when imperfect channel state information (CSI) is available and adopted for transmit antenna selection at the BS. Considering that each eavesdropping link experiences independent but not necessarily identically distributed Rayleigh fading, the closed-form expressions for the exact and the asymptotic secrecy outage probability, and the average secrecy capacity are derived and verified by simulations. Furthermore, the optimal power splitting factor is derived for each ER to realize the tradeoff between the energy harvesting and the information eavesdropping. Our results reveal the impact of the imperfect CSI on the secrecy performance of MISO SWIPT systems in the presence of multiple wiretap channels.

源语言英语
文章编号7480386
页(从-至)3831-3843
页数13
期刊IEEE Transactions on Communications
64
9
DOI
出版状态已出版 - 9月 2016
已对外发布

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Pan, G., Lei, H., Deng, Y., Fan, L., Yang, J., Chen, Y., & Ding, Z. (2016). On Secrecy Performance of MISO SWIPT Systems with TAS and Imperfect CSI. IEEE Transactions on Communications, 64(9), 3831-3843. 文章 7480386. https://doi.org/10.1109/TCOMM.2016.2573822